Make USD account configurable

[jatiim]

Summary

Make the account with the currency US-Dollar of PSU-Successful configurable

Checklist for Definition of Done

Depending on the task some of the following jobs are not relevant. Please check the items or cross them out (~~text~~).

• [x] Code is technically reviewed by myself
• [x] Code is manually tested
• [x] Automatic tests for new functionality are created
• [x] Documentation is updated
• [x] Git history is clean

[codecov[bot]]

Codecov Report

Merging #92 into master will increase coverage by 0.03%. The diff coverage is 100%.

@@             Coverage Diff              @@
##             master      #92      +/-   ##
============================================
+ Coverage     71.51%   71.55%   +0.03%     
- Complexity      289      290       +1     
============================================
  Files            77       77              
  Lines          1608     1610       +2     
  Branches        111      112       +1     
============================================
+ Hits           1150     1152       +2     
  Misses          396      396              
  Partials         62       62

Impacted Files	Coverage Δ	Complexity Δ
...ys/psd2/sandbox/xs2a/testdata/TestDataService.java	98.17% <100%> (+0.01%)	34 <1> (+1)	:arrow_up:

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